<!-- This comment will put IE 6, 7 and 8 in quirks mode -->
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
<title>examples/EA/MOO/MOCMAApproximated.cpp Source File</title>
<script type="text/javaScript" src="search/search.js"></script>
<script type="text/javascript" src="jquery.js"></script>
<script type="text/javascript" src="dynsections.js"></script>
<script src="https://polyfill.io/v3/polyfill.min.js?features=es6"></script>
<script id="MathJax-script" async src="https://cdn.jsdelivr.net/npm/mathjax@3.0.1/es5/tex-mml-chtml.js"></script>
<script src="../../mlstyle.js"></script>
<link href="../css/besser.css" rel="stylesheet" type="text/css"/>
</head>
<!-- pretty cool: each body gets an id tag which is the basename of the web page  -->
<!--              and allows for page-specific CSS. this is client-side scripted, -->
<!--              so the id will not yet show up in the served source code -->
<script type="text/javascript">
    jQuery(document).ready(function () {
        var url = jQuery(location).attr('href');
        var pname = url.substr(url.lastIndexOf("/")+1, url.lastIndexOf(".")-url.lastIndexOf("/")-1);
        jQuery('#this_url').html('<strong>' + pname + '</strong>');
        jQuery('body').attr('id', pname);
    });
</script>
<body>
    <div id="shark_old">
        <div id="wrap">
            <div id="header">
                <div id="site-name"><a href="../../sphinx_pages/build/html/index.html">Shark machine learning library</a></div>
                <ul id="nav">
                    <li >
                        <a href="../../sphinx_pages/build/html/rest_sources/installation.html">Installation</a>
                    </li>
		    <li >
                        <a href="../../sphinx_pages/build/html/rest_sources/tutorials/tutorials.html">Tutorials</a>
                    </li>
		    <li >
                        <a href="../../sphinx_pages/build/html/rest_sources/benchmark.html">Benchmarks</a>
                    </li>
                    <li class="active">
                        <a href="classes.html">Documentation</a>
                        <ul>
                            <li class="first"></li>
                            <li><a href="../../sphinx_pages/build/html/rest_sources/quickref/quickref.html">Quick references</a></li>
                            <li><a href="classes.html">Class list</a></li>
                            <li class="last"><a href="group__shark__globals.html">Global functions</a></li>
                        </ul>
                    </li>
                </ul>
            </div>
        </div>
    </div>
<div id="doxywrapper">
<!--
    <div id="global_doxytitle">Doxygen<br>Documentation:</div>
-->
    <div id="navrow_wrapper">
<!-- Generated by Doxygen 1.9.8 -->
<div id="nav-path" class="navpath">
  <ul>
<li class="navelem"><a class="el" href="dir_d28a4824dc47e487b107a5db32ef43c4.html">examples</a></li><li class="navelem"><a class="el" href="dir_2a183e805d3de2a690c8e5378d3184ca.html">EA</a></li><li class="navelem"><a class="el" href="dir_a97b6b38bceb5bc56acbea4aa722f481.html">MOO</a></li>  </ul>
</div>
</div><!-- top -->
<div class="header">
  <div class="headertitle"><div class="title">MOCMAApproximated.cpp</div></div>
</div><!--header-->
<div class="contents">
<a href="_m_o_c_m_a_approximated_8cpp.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno">    1</span><span class="comment">/*!</span></div>
<div class="line"><a id="l00002" name="l00002"></a><span class="lineno">    2</span><span class="comment"> * </span></div>
<div class="line"><a id="l00003" name="l00003"></a><span class="lineno">    3</span><span class="comment"> *</span></div>
<div class="line"><a id="l00004" name="l00004"></a><span class="lineno">    4</span><span class="comment"> * \brief       Example for running the approximated hypervolume MO-CMA-ES on an exemplary benchmark function.</span></div>
<div class="line"><a id="l00005" name="l00005"></a><span class="lineno">    5</span><span class="comment"></span> </div>
<div class="line"><a id="l00006" name="l00006"></a><span class="lineno">    6</span><span class="comment"> * </span></div>
<div class="line"><a id="l00007" name="l00007"></a><span class="lineno">    7</span><span class="comment"> *</span></div>
<div class="line"><a id="l00008" name="l00008"></a><span class="lineno">    8</span><span class="comment"> * \author      tvoss</span></div>
<div class="line"><a id="l00009" name="l00009"></a><span class="lineno">    9</span><span class="comment"> * \date        -</span></div>
<div class="line"><a id="l00010" name="l00010"></a><span class="lineno">   10</span><span class="comment"> *</span></div>
<div class="line"><a id="l00011" name="l00011"></a><span class="lineno">   11</span><span class="comment"> *</span></div>
<div class="line"><a id="l00012" name="l00012"></a><span class="lineno">   12</span><span class="comment"> * \par Copyright 1995-2017 Shark Development Team</span></div>
<div class="line"><a id="l00013" name="l00013"></a><span class="lineno">   13</span><span class="comment"> * </span></div>
<div class="line"><a id="l00014" name="l00014"></a><span class="lineno">   14</span><span class="comment"> * &lt;BR&gt;&lt;HR&gt;</span></div>
<div class="line"><a id="l00015" name="l00015"></a><span class="lineno">   15</span><span class="comment"> * This file is part of Shark.</span></div>
<div class="line"><a id="l00016" name="l00016"></a><span class="lineno">   16</span><span class="comment"> * &lt;https://shark-ml.github.io/Shark/&gt;</span></div>
<div class="line"><a id="l00017" name="l00017"></a><span class="lineno">   17</span><span class="comment"> * </span></div>
<div class="line"><a id="l00018" name="l00018"></a><span class="lineno">   18</span><span class="comment"> * Shark is free software: you can redistribute it and/or modify</span></div>
<div class="line"><a id="l00019" name="l00019"></a><span class="lineno">   19</span><span class="comment"> * it under the terms of the GNU Lesser General Public License as published </span></div>
<div class="line"><a id="l00020" name="l00020"></a><span class="lineno">   20</span><span class="comment"> * by the Free Software Foundation, either version 3 of the License, or</span></div>
<div class="line"><a id="l00021" name="l00021"></a><span class="lineno">   21</span><span class="comment"> * (at your option) any later version.</span></div>
<div class="line"><a id="l00022" name="l00022"></a><span class="lineno">   22</span><span class="comment"> * </span></div>
<div class="line"><a id="l00023" name="l00023"></a><span class="lineno">   23</span><span class="comment"> * Shark is distributed in the hope that it will be useful,</span></div>
<div class="line"><a id="l00024" name="l00024"></a><span class="lineno">   24</span><span class="comment"> * but WITHOUT ANY WARRANTY; without even the implied warranty of</span></div>
<div class="line"><a id="l00025" name="l00025"></a><span class="lineno">   25</span><span class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the</span></div>
<div class="line"><a id="l00026" name="l00026"></a><span class="lineno">   26</span><span class="comment"> * GNU Lesser General Public License for more details.</span></div>
<div class="line"><a id="l00027" name="l00027"></a><span class="lineno">   27</span><span class="comment"> * </span></div>
<div class="line"><a id="l00028" name="l00028"></a><span class="lineno">   28</span><span class="comment"> * You should have received a copy of the GNU Lesser General Public License</span></div>
<div class="line"><a id="l00029" name="l00029"></a><span class="lineno">   29</span><span class="comment"> * along with Shark.  If not, see &lt;http://www.gnu.org/licenses/&gt;.</span></div>
<div class="line"><a id="l00030" name="l00030"></a><span class="lineno">   30</span><span class="comment"> *</span></div>
<div class="line"><a id="l00031" name="l00031"></a><span class="lineno">   31</span><span class="comment"> */</span></div>
<div class="line"><a id="l00032" name="l00032"></a><span class="lineno">   32</span><span class="comment">// Implementation of the MO-CMA-ES</span></div>
<div class="line"><a id="l00033" name="l00033"></a><span class="lineno">   33</span><span class="preprocessor">#include &lt;<a class="code" href="_m_o_c_m_a_8h.html">shark/Algorithms/DirectSearch/MOCMA.h</a>&gt;</span></div>
<div class="line"><a id="l00034" name="l00034"></a><span class="lineno">   34</span><span class="comment">// Access to benchmark functions</span></div>
<div class="line"><a id="l00035" name="l00035"></a><span class="lineno">   35</span><span class="preprocessor">#include &lt;<a class="code" href="_benchmarks_8h.html">shark/ObjectiveFunctions/Benchmarks/Benchmarks.h</a>&gt;</span></div>
<div class="line"><a id="l00036" name="l00036"></a><span class="lineno">   36</span>        </div>
<div class="foldopen" id="foldopen00037" data-start="{" data-end="}">
<div class="line"><a id="l00037" name="l00037"></a><span class="lineno"><a class="line" href="_m_o_c_m_a_approximated_8cpp.html#a3c04138a5bfe5d72780bb7e82a18e627">   37</a></span><span class="keywordtype">int</span> <a class="code hl_function" href="_datasets_8cpp.html#ae66f6b31b5ad750f1fe042a706a4e3d4">main</a>( <span class="keywordtype">int</span> argc, <span class="keywordtype">char</span> ** argv ) {</div>
<div class="line"><a id="l00038" name="l00038"></a><span class="lineno">   38</span> </div>
<div class="line"><a id="l00039" name="l00039"></a><span class="lineno">   39</span>    <span class="comment">// Adjust the floating-point format to scientific and increase output precision.</span></div>
<div class="line"><a id="l00040" name="l00040"></a><span class="lineno">   40</span>    std::cout.setf( std::ios_base::scientific );</div>
<div class="line"><a id="l00041" name="l00041"></a><span class="lineno">   41</span>    std::cout.precision( 10 );</div>
<div class="line"><a id="l00042" name="l00042"></a><span class="lineno">   42</span> </div>
<div class="line"><a id="l00043" name="l00043"></a><span class="lineno">   43</span>    <span class="comment">// Instantiate both the problem and the optimizer.</span></div>
<div class="line"><a id="l00044" name="l00044"></a><span class="lineno">   44</span>    <a class="code hl_struct" href="structshark_1_1benchmarks_1_1_d_t_l_z2.html" title="Implements the benchmark function DTLZ2.">shark::benchmarks::DTLZ2</a> dtlz2;</div>
<div class="line"><a id="l00045" name="l00045"></a><span class="lineno">   45</span>    dtlz2.<a class="code hl_function" href="structshark_1_1benchmarks_1_1_d_t_l_z2.html#a17742774250c5dcbd168b7238dc86cba" title="Adjusts the number of objectives if the function is scalable.">setNumberOfObjectives</a>( 5 );</div>
<div class="line"><a id="l00046" name="l00046"></a><span class="lineno">   46</span>    dtlz2.<a class="code hl_function" href="structshark_1_1benchmarks_1_1_d_t_l_z2.html#ab3a98b7bf9aed8be1dc0e20b5d0ed9c2" title="Adjusts the number of variables if the function is scalable.">setNumberOfVariables</a>( 25 );</div>
<div class="line"><a id="l00047" name="l00047"></a><span class="lineno">   47</span>    </div>
<div class="line"><a id="l00048" name="l00048"></a><span class="lineno">   48</span> </div>
<div class="line"><a id="l00049" name="l00049"></a><span class="lineno">   49</span>    <a class="code hl_class" href="classshark_1_1_indicator_based_m_o_c_m_a.html" title="Implements the generational MO-CMA-ES.">shark::MOCMA</a> mocma;</div>
<div class="line"><a id="l00050" name="l00050"></a><span class="lineno">   50</span>    mocma.<a class="code hl_function" href="classshark_1_1_indicator_based_m_o_c_m_a.html#a091929f84adc0a2b8f61e7b8f373ec33">mu</a>() = 120;</div>
<div class="line"><a id="l00051" name="l00051"></a><span class="lineno">   51</span>    mocma.<a class="code hl_function" href="classshark_1_1_indicator_based_m_o_c_m_a.html#af2b3ebf01d425b30744c299614707d17">indicator</a>().useApproximation(<span class="keyword">true</span>);</div>
<div class="line"><a id="l00052" name="l00052"></a><span class="lineno">   52</span>    mocma.<a class="code hl_function" href="classshark_1_1_indicator_based_m_o_c_m_a.html#af2b3ebf01d425b30744c299614707d17">indicator</a>().approximationDelta() = 0.05;</div>
<div class="line"><a id="l00053" name="l00053"></a><span class="lineno">   53</span>    mocma.<a class="code hl_function" href="classshark_1_1_indicator_based_m_o_c_m_a.html#af2b3ebf01d425b30744c299614707d17">indicator</a>().setReference(shark::RealVector(dtlz2.<a class="code hl_function" href="structshark_1_1benchmarks_1_1_d_t_l_z2.html#a6a7cbabf0eeabdb810607b8e041c4d1f">numberOfObjectives</a>(),11));</div>
<div class="line"><a id="l00054" name="l00054"></a><span class="lineno">   54</span>    <span class="comment">// Initialize the optimizer for the objective function instance.</span></div>
<div class="line"><a id="l00055" name="l00055"></a><span class="lineno">   55</span>    dtlz2.<a class="code hl_function" href="classshark_1_1_abstract_objective_function.html#abe4776a85c4ce622c25f3290fa1395d1">init</a>();</div>
<div class="line"><a id="l00056" name="l00056"></a><span class="lineno">   56</span>    mocma.<a class="code hl_function" href="classshark_1_1_indicator_based_m_o_c_m_a.html#a015efc8d71a2dbc53aef7a5be2895ce2" title="Initializes the algorithm for the supplied objective function.">init</a>( dtlz2 );</div>
<div class="line"><a id="l00057" name="l00057"></a><span class="lineno">   57</span> </div>
<div class="line"><a id="l00058" name="l00058"></a><span class="lineno">   58</span>    <span class="comment">// Iterate the optimizer</span></div>
<div class="line"><a id="l00059" name="l00059"></a><span class="lineno">   59</span>    <span class="keywordflow">while</span>( dtlz2.<a class="code hl_function" href="classshark_1_1_abstract_objective_function.html#afaa9cc39ccb4d74a0d6db0ae2d087051" title="Accesses the evaluation counter of the function.">evaluationCounter</a>() &lt; 2000 ) {</div>
<div class="line"><a id="l00060" name="l00060"></a><span class="lineno">   60</span>        mocma.<a class="code hl_function" href="classshark_1_1_indicator_based_m_o_c_m_a.html#a5088cd38153a92dcaf45361aae621c2b" title="Executes one iteration of the algorithm.">step</a>( dtlz2 );</div>
<div class="line"><a id="l00061" name="l00061"></a><span class="lineno">   61</span>        std::cout&lt;&lt;dtlz2.<a class="code hl_function" href="classshark_1_1_abstract_objective_function.html#afaa9cc39ccb4d74a0d6db0ae2d087051" title="Accesses the evaluation counter of the function.">evaluationCounter</a>()&lt;&lt;std::endl;</div>
<div class="line"><a id="l00062" name="l00062"></a><span class="lineno">   62</span>    }</div>
<div class="line"><a id="l00063" name="l00063"></a><span class="lineno">   63</span> </div>
<div class="line"><a id="l00064" name="l00064"></a><span class="lineno">   64</span>    <span class="comment">// Print the optimal pareto front</span></div>
<div class="line"><a id="l00065" name="l00065"></a><span class="lineno">   65</span>    <span class="keywordflow">for</span>( std::size_t i = 0; i &lt; mocma.<a class="code hl_function" href="classshark_1_1_abstract_multi_objective_optimizer.html#a88cd9d9eb6bd2edf4aa671b12024b7f2" title="Accesses the current approximation of the Pareto-set and -front, respectively.">solution</a>().size(); i++ ) {</div>
<div class="line"><a id="l00066" name="l00066"></a><span class="lineno">   66</span>        <span class="keywordflow">for</span>( std::size_t j = 0; j &lt; dtlz2.<a class="code hl_function" href="structshark_1_1benchmarks_1_1_d_t_l_z2.html#a6a7cbabf0eeabdb810607b8e041c4d1f">numberOfObjectives</a>(); j++ ) {</div>
<div class="line"><a id="l00067" name="l00067"></a><span class="lineno">   67</span>            std::cout&lt;&lt; mocma.<a class="code hl_function" href="classshark_1_1_abstract_multi_objective_optimizer.html#a88cd9d9eb6bd2edf4aa671b12024b7f2" title="Accesses the current approximation of the Pareto-set and -front, respectively.">solution</a>()[ i ].value[j]&lt;&lt;<span class="stringliteral">&quot; &quot;</span>;</div>
<div class="line"><a id="l00068" name="l00068"></a><span class="lineno">   68</span>        }</div>
<div class="line"><a id="l00069" name="l00069"></a><span class="lineno">   69</span>        std::cout &lt;&lt; std::endl;</div>
<div class="line"><a id="l00070" name="l00070"></a><span class="lineno">   70</span>    }</div>
<div class="line"><a id="l00071" name="l00071"></a><span class="lineno">   71</span>}</div>
</div>
</div><!-- fragment --></div><!-- contents -->
</div>
</body>
</html>
